Safety Interlock Switch
HC-1, HC-3, HC-SS Operating Instructions
HC-1
HC-SS
HC-3
IMPORTANT NOTE:
Read and understand these instructions before installing, operating, or maintaining this equipment.
These products are designed to be a component of a customised safety orientated control system. It is the responsibility of each manufacturer to ensure the correct overall
functionality of its systems and machines. IDEM, its subsidiaries and affiliates, are not in a position to guarantee all of the characteristics of a given system or product not
designed by IDEM.
Application:
HC-1, HC-3 and HC-SS Hingecam Switches are designed to be mounted for interlock position sensing of hinged moving guards.
They have been designed to be fitted to the hinged axis of machine guard doors..
They have positive opening contacts in accordance with IEC 60947-5-1 and after fitting the switch offers a high degree of anti-tamper. They are available with either an angled or
flat actuator fixing to cover most fixing positions and contact blocks are available in slow make/break 1NC 1NO, 2NC or 2NC 1NO (dependant on model).
Enclosures are protected to IP67 (HC-SS is rated IP69K).
Operation:
Operation of the switches is achieved by the sliding action of the stainless steel shaft to cause deflection of the switch plunger. Positive actuation of the contacts is achieved at
only 7 degrees of opening of the guard.
Installation guide:
Correct Mounting of Interlock Switches is critical to obtain optimum performance and ensure safety reliability.
Installation of all switches must be in accordance with a risk assessment for the individual application.
Installation must only be carried out by competent personnel and in accordance with these instructions.
Warning: Do not defeat, bypass or tamper with this switch, severe injury may result.
1.
2.
3.
4.
5.
6.
7.
8.
Never use the switch as a mechanical stop.
The heads of the switch can be rotated to obtain the best switch orientation by removing the 4 head screws and rotating the head through 90 degrees. Always ensure the
4 head screws are tightened to 1Nm to ensure switch robustness.
The stainless steel shaft can be set to rotate clockwise or anti-clockwise depending upon the opening direction of the guard
When mounting to the guard door, align and fix the switch body to the frame of the door using 2 x M4 mounting bolts tightened at 1.5Nm.
Always ensure that when fitting electrical conductors that they are routed correctly and do not interfere with the switch cover during fitting.
Recommended conductor size is 1.5 – 2.5sq.mm, contact terminal tightening torque is 1Nm.
Tightening torque for the lid screw and cable glands is1Nm to maintain IP rating.
Check that the machine is stopped and cannot be started when the interlocked guard is open.
After installation apply tamper resistance paint or compound to the actuator and switch mounting bolts.
Maintenance:
Every Week:
Check the switch body and stainless steel shaft for signs of mechanical damage and wear. Replace any switch showing damage.
Check that the machine is stopped and cannot be started when the interlocked guard is open.
Every 6 Months: Check for mechanical damage to switch body or actuator. Replace any switch showing damage.
Isolate power and remove cover. Check screw terminal tightness and check for signs of moisture ingress. Never attempt to repair any switch.
Contact Blocks/Connections:
HC-1
Slow Make Break
Switch Circuit
11/12
21/22 or 23/24
2NC
Slow Make Break
1NC 1NO
Quick Connect (QC)
M12 8 Way Male
(on Flying Lead 250mm)
Pin view from switch
1 7
6 5
HC-3 and HC-SS
Slow Make Break 2NC 1NO
Switch Circuit
Quick Connect M12
11/12
21/22
33/34
Quick Connect (QC)
M12 8 Way Male
(on Flying Lead 250mm)
Pin view from switch
1 7
6 5
4 3
Quick Connect M12
Safety Interlock Switch
Dimensions (outline fixing dimensions shown in mm)
Application Example: Door Interlock - Dual Channel non-monitored.
HC-3 and HC-SS
HC-1
HC-3
This system shows interlock switch circuits 11-12 and 21-22 configured to allow dual
circuit direct feeds to contactor coils K1 and K2.
When the start button is pressed and then released, the auxiliary contacts (A) of
contactors K1 and K2 maintain the feed to the contactor coils.
Opening of the Interlock Switch or depressing the E Stop will isolate power to the
contactor coils.
Re-start can only occur providing the Guard is closed and the E Stop is reset.
System is shown with the guards closed and the machine able to start.
HC-SS
Standards:
Safety Classification & Reliability Data:
Mechanical Reliability B10d
EN 954-1
ISO 13849-1
EN62061
Safety Data – Annual Usage
PFHd
Proof Test Interval (Life)
MTTFd
Utilization Category
Thermal Current (lth)
Rated Insulation/Withstand Voltages
Actuator Rotation for Positive Opening
Actuator Entry Minimum Radius
Maximum Approach Withdrawal Speed
Body Material
Enclosure Protection
Operating Temperature
Vibration
Conduit Entry
Fixing
Mounting Position
Pollution Degree
Short Circuit Overload Protection
EN1088, 50047, IEC 60947-5-1, EN60204-1
ISO 13849-1, EN62061, UL508
2.5 x 106 operations at 100mA load
Up to Category 4 with Safety Relay
Up to PLe depending upon system architecture
Up to SIL3 depending upon system architecture
8 cycles per hour/24 hours per day/365 days
3.4 x 10-8
35 years
356 years
AC15 A300 3A
10A
600VAC/2500VAC
7 degrees 0.5Nm (Type Zb contacts)
175mm Standard 100mm Flexible
600mm/s
Polyester/Stainless Steel 316
IP67 Plastic or IP69K Stainless Steel 316
-25C +80C
IEC 68-2-6 10-55Hz+1Hz
Excursion: 0.35mm, 1 octave/min
Various (see sales part numbers)
2 x M4
Any
3
Fuse externally 10A (FF)
IDEM SAFETY SWITCHES Ltd., 2 Ormside Close, Hindley Industrial Estate, Hindley Green, Wigan, WN2 4HR UK. Tel: +44 (0)1942 257070 Fax.: +44 (0)1942 257076
IDEM (USA) 4416 Technology Drive, Fremont, CA 94538 Tel:510-445-0751 Fax:1866-431-7064 email: sales@idemsafety.com Web: www.idemsafety.com
Doc: 102560
Jan.. 2014